Data Binding in user control

I can do this
- create a Window
- define a Dependency property in the code behind the Window
- bind this property it to the content of some standard control placed in
the Window
(Eg a TextBlock which displays a string set in the code behind)
So far so good.

But when I
- create a custom control (MyControl.xaml & MyControl.xaml.cs)
- define dependency properties in the code behind the control
- use those properties in the markup for the control to define its appearance
- deploy the control in a Window (ie call it up as <local:MyControl> ) I
don't see values that I initialised in the code behind the control taking
effect in the control

I'm sure this might be a datacontext issue in my Window, but I don't see how
to resolve it given that there are no actual bindings setup in the
Window1.xaml itself.

Thanks for any general suggestions or blog pointers.
--
Griff
(trying to make an industrial UI with XAML/WPF/c#)

I have discovered what was going wrong.

I was generating my control from the UserControl base class. I could not
get any databinding to work.
I changed to ContentControl.
Now everything works.


--
Griff
(trying to make an industrial UI with XAML/WPF/c#)


"Griff" wrote:

> I can do this
> - create a Window
> - define a Dependency property in the code behind the Window
> - bind this property it to the content of some standard control placed in
> the Window
> (Eg a TextBlock which displays a string set in the code behind)
> So far so good.
>
> But when I
> - create a custom control (MyControl.xaml & MyControl.xaml.cs)
> - define dependency properties in the code behind the control
> - use those properties in the markup for the control to define its appearance
> - deploy the control in a Window (ie call it up as <local:MyControl> ) I
> don't see values that I initialised in the code behind the control taking
> effect in the control
>
> I'm sure this might be a datacontext issue in my Window, but I don't see how
> to resolve it given that there are no actual bindings setup in the
> Window1.xaml itself.
>
> Thanks for any general suggestions or blog pointers.
> --
> Griff
> (trying to make an industrial UI with XAML/WPF/c#)

Griff wrote:
> I have discovered what was going wrong.
>
> I was generating my control from the UserControl base class. I could not
> get any databinding to work.
> I changed to ContentControl.
> Now everything works.
>
>

ContentControl, eh...? I'll have to try that now! Can anyone MS
people in this ng (Tina, anyone?) explain what the architectural
differences are?

Thanks,
Jason

UserControl may actually become a subclass of content control in a future
CTP...if that goes through successfully, there will be no difference to
describe.

:-)

Thanks,
Rob Relyea
WPF Program Manager
http://longhornblogs.com/rrelyea

"Jason Dolinger" <jdolinger@lab49.com> wrote in message
news:%230FoZezBGHA.984@tk2msftngp13.phx.gbl...
> Griff wrote:
>> I have discovered what was going wrong.
>>
>> I was generating my control from the UserControl base class. I could
>> not get any databinding to work.
>> I changed to ContentControl.
>> Now everything works.
>
> ContentControl, eh...? I'll have to try that now! Can anyone MS people
> in this ng (Tina, anyone?) explain what the architectural differences are?
>
> Thanks,
> Jason